Manufacture of harness-pads.



PATENTED SEPT, 3, 1907. M. B, LEE & O. H. GRINGS.

MANUFACTURE OF HARNESS PADS.

APPLICATION FILED SEPT. 26, 1904.

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No. 864,973. PATENTED SEPT. a, 1907.

M. B. LEM; c. H. GRINGS.

MANUFACTURE OF'HARNESS PADS.

APPLICATION FILED um. 26. 1904 h a Snnms-smmm-z.

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No. 864,973. v PATENTED SEPT. 3, 1907.

M. B. LEE & G. H. GRINGS.

V MANUFACTURE OF HARNESS PADS.

AI PLIOATION FILED SEPT. 26. 1904.

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0.. ...Y E Z3 52 52 5 WITNESSES: k fiVVE Toms UNITED STATES PATENTOFFICE.

MAURICE B. LEE AND CASPER HUGO GRINGS, OF DUBUQUE, IOWA, ASSTGNORS TODUBUQUE HARNESS AND SADDLERY COMPANY, OF D'UBUQUE, IOWA, A ()ORPORAJIONOF IOWA.

MANUFACTURE OF HARNESS-PADS.

Specification of Letters Patent.

Patented Sept. 3, 1907.

Application filed September 26, 190 1. $erial No. 225,977.

To all whom it may concern:

Be it known that we, MAURICE B. Len and Casrnn HUGO GnINos, bothcitizens of the United States, and residing in the city and county ofDubuque and State of Iowa, have jointly invented certain new and usefulImprovements in the l\;'[anufacture of Harness-Pads,

and we do hereby declare the following to be a full,

clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

Our invention relates to machines for the manufacture of harnesses withspecial reference to those for the manufacture of harness pads, and theleading object is to provide means whereby the hair or other packingmaterial can be quickly and easily packed in the pad and retainedtherein till the leather or other covering material is secured aroundthe hair and the pad is practically completed.

Another object is to provide means for securing the leather or othermaterial around the hair or packing and hold the pad until it isfinished.

The details of construction and mode of operation will be fully set outin the following specification when read in connection with the drawingsaccompanying the same and forming a part hereof.

Figure 1 is a perspective view of the machine with the mold and shapcror die in the mold. Fig. 2 is a front end view of Fig. 1. Fig. 3perspective view of the die-block or mold. Fig. 4 is a side elevation ofthe die for shaping the pad to be used with the mold shown in Fig. 3.Fig. 5 is a perspective view of one of the boxes for holding the hairfor packing into one of the molds. Fig. 6 is a perspective view of thebox shown in Fig. 5 with the follower or compressor in position afterthe pad is packed. Fig. '7 is a plan view of the follow plate used inthe boxes shown in Figs. 5 and 6, and on which the fasteners areclenched. Fig. 8 is a perspective view of the mold after having beenpacked showing the follow plates and the pins therein holding down thefollow plate on top of the packing. Fig. 9 is a perspective view of thepacked mold shown in Fig. 8 with the pins removed, the bur piece inposition and the clamp for holding the bur piece on the packed pad-andall in position for the leather or other cover of the pads to befastened. Fig. 10 is a side view of a compressor block with which thelever engages to compress the packing into the mold. Fig. 11 is aperspective view on an enlarged scale, of the clamp for holding the padsand bur piece while the cover is being fastened on. Fig. 12 is atransverse vertical central section through the machine, mold and shaperas seen in Fig. 1. Figs. 13 and 14 are, respectively, a plan andlongitudinal section of the completed pad.

Like characters of reference denote corresponding 55 parts in each ofthe drawing.

.lteferring to the drawings, 2 designates the mold frame which ispreferably cast in one piece with female molds 4 and 5, one at each endwith a space (5 between. The molds 4; and 5 are hollowed out to conformto the shape desired for the harness pads. Through the sides of the moldframe on both sides are openings 8 for the purpose presently to appear.

For the purpose of shaping the leather or other material which forms thecovering of the pads to conform to the shape of the molds 4 and 5, thereis provided a comprcssor or male die 10 shown in Fig. 4;. This die maybe one piece of cast metal or of some other hard substance and formedwith the two dies 12 and l t of just the shape of the molds 4 and 5m themold frame 2. The upper portion terminates in a head 15 which may beflat on top or slotted so that when the lever arm, subsequently to bedescribed, is brought down on the die 10, it will enter the slot and thesides of the slot will hold the die 10 perpendicular so that thepressure of the die 10 on the mold will be vertical.

For the purpose of readily and quickly compressing the hair or otherpacking into the molds 4 and 5, and also for rapidly gaging or measuringthe amount of packing to be com ncsscd into a mold, there is provided abox 16 of the form of a parallelogram having four vertical sides 18, 19,20 and 21 which are rigidly united together. This box is substantiallyof the same size on its inside as one of the molds 4- or 5 and isadapted to set on a shoulder 22 in the frame 2. These boxes are made induplicate, one for each. of the molds 1 and 5 and preferably of thecapacity for holding just the amount of loose packing required to fill amold when compressed. in these boxes .is placed just sufficient hair orother packing material to 1 ill the pad to the desired. consistency whenthe material is compressed and in order to compress the packing and holdit in the pad while the cover of the pad is secured around it, there isplaced on the packing in the box a follow plate 25 preferably of metalshown in Fig. 7 which is about the size of the inside of the box 16.This follow plate serves, not only as a follow plate in compressing thepacking, but with other appliances hereinafter mentioned holds down thepacking in the mold and also serves as an anvil on which the fastenersof the cover of the pad are clenched. On the top of this follow plate 25is placed a compressor block 26 shown in Fig. 10. The block has a base28 of practically the size and shape of. the plate 25 and the box 10.The top 30 of the block may be of the same size and shape as the base,but preferably the upper corners are cut away.

The machine for operating upon the die 10 and the block 26 is shown inFigs. 1 and 2 and consists of a block 32 set upon legs 34 which arestayed by braces 35. On the block 32 is placed'a rectangular flat plate33 upon which the mold frame 2 rests. At one end is set a standard 36 tothe top of which is pivoted a lever arm 38, having a handle 40. At theother end of the block 32 is secured another standard 42 which isbiiurcated and between the two parts the lever 38 is adapted to beoperated. Upon the lever arm 38 is pivoted a pawl 44 by the pivot pins43 adapted to engage the ratchet teeth 45 on the standard 42. Near thetop of the standard 42 is a hook or catch 46 in which the lever arm 38rests when not in use.

The manner of operating our device is substantially as followsz-Theleather or other outside wrapping for the pads is placed in the moldshown in Fig. 3 and upon this is placed the male die 10 with the dies 14over the mold 5 and the die 12 over the mold 4 and this is placed in abed upon the block 32, as shown in Fig. 1, and the operator grasps thehandle 40 of the lever 38 and brings it down into the slot in the head15 of the die 10. This forces the leather down into the molds 4 and 5;then the pawl 44 is brought into engagement with one of the notches orratchets 45 on the upright 42 and holds the leather or cover in themolds 4 and 5 until it is properly shaped. When the leather has beenfashioned until it will retain the form of the two molds 4 and 5, thedie 10 is removed and there is placed over each of these molds, boxes 16which are then filled with the hair 48 or other packing material and thefollow plates 25, one for each box is placed on top of the packing. Theoperator then places the blocks 26 on the top of the plates 25 one foreach box and the lever 38 is brought down upon the head 30 of the blocks26. This presses the packing down into the molds 4 and 5. Then theoperator inserts pins 50 through the holes 8 and through the leather51which project over the top of the plates 25 on each side of the frame2and as the boxes are cut away around the holes at 23,they will not inany manner interfere with the insertion of the pins 50. The lever 38 isthen raised and the blocks 26 are removed and also the boxes 16, leavingthe mold filled with the packing and the plates 25 with the pins 50holding the packing in the molds as shown in Fig. 8. The operator thenplaces on top of the plates 25 the usual bur piece 52 which extends thelength of both of the molds and upon this a rigid bar of iron 54 whichholds the pads with the plates 25 thereon and the mold 2 together by aclamp 55 (shown in Fig. ll), by inserting one arm 56 of the clamp in thehole 7 in the frame 2 and the other arm 58 over the top of the iron bar54 and as the arms 56 and 58 of the clamp 55 are set at an angle to eachother, they are adapted to adjust themselves to different thicknesses ofthe bur-piece, and when the clamp is adjusted, it will appear as shownin Fig 9. The pins 50 are then removed, but the hair and the plates 25and the bur piece 52 are still retained in the position as shown in Fig.9 and ready to fasten the leather upon the bur piece 52 around thepacking. The mold frame 2 with the packing and follow plate are removedfrom the block 32 and passed to a bench and there the leather is bentover and tacked on to the bur-piece. The tacks or iasteners when drivendown through the leather and through the hurpiece come in contact withthe steel plates 25 and are riveted or clenched upon said plates. Theplates 25 serve as anvils or furnish means for clenching the fastenersof the cover of the pads. After the leather has been tacked upon the burpiece and the fasteners clenched upon the plates 25, the clamp 55 andthe bar 54 are removed and also the plates 25 are drawn out from theends of the pads and the pads are finished.

It will be seen that by the use of this device and this mode ofoperating the same, that the pads will be uniformly packed and will befinished rapidly. It will further be seen that the tacks or fastenersthrough the leather and bur piece will be so well clenched upon theplates 25, that there will be no danger of their being drawn out and thewhole pad can be finished without any extra machinery or without the aidof any particularly skilled mechanic.

Having now described my invention what I claim 1. In a device of thecharacter described, a double mold for shaping both ends of a harnesspad, a metallic follow plate for each side of the mold, a rigid barspanning both' said plates and clamp adapted to be passed transverselyof the mold and bar for securing the follow plates in position.

2. In a device of the character described, a double mold for shapingboth ends of a harness pad, there being a transverse depression at themiddle of said mold and a transverse hole through the mold below saiddepression, a clamp having one arm fitted to said hole and the otheradapted to extend transversely across the mold for holding material inthe mold.

In a device of the character described, a double mold for shaping bothends of a harness pad, upwardly projecting flanges extending along thelongitudinal edges of said mold and having apertures therethrough, pinsfitted to said apertures, and follow plates for each end of the mold tobe held temporarily in place by said pins.

4. In a device of the character described, a mold, a box over the moldprovided with notches in the lower edges 01' its sides, a follow platetitted to said box and to the mold, means for forcing the follower downupon packing in the mold and pins adapted to be passed through the edgesof the mold and through said notches in the box for temporarilyretaining the follower in place in the mold.

In testimony whereof we aflix our signatures in presence of twowitnesses.

MAURICE B. LEE. C. HUGO GRINGS.

Witnesses:

M. M. Cam, M. R. HEMMER.

